diff --git a/drivers/st/io/io_mmc.c b/drivers/st/io/io_mmc.c
deleted file mode 100644
index 2bf88e6..0000000
--- a/drivers/st/io/io_mmc.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Copyright (c) 2018-2021, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <assert.h>
-#include <errno.h>
-#include <string.h>
-
-#include <common/debug.h>
-#include <drivers/io/io_driver.h>
-#include <drivers/io/io_storage.h>
-#include <drivers/mmc.h>
-#include <drivers/st/io_mmc.h>
-#include <drivers/st/stm32_sdmmc2.h>
-
-/* SDMMC device functions */
-static int mmc_dev_open(const uintptr_t init_params, io_dev_info_t **dev_info);
-static int mmc_block_open(io_dev_info_t *dev_info, const uintptr_t spec,
-			  io_entity_t *entity);
-static int mmc_dev_init(io_dev_info_t *dev_info, const uintptr_t init_params);
-static int mmc_block_seek(io_entity_t *entity, int mode,
-			  signed long long offset);
-static int mmc_block_read(io_entity_t *entity, uintptr_t buffer, size_t length,
-			  size_t *length_read);
-static int mmc_block_close(io_entity_t *entity);
-static int mmc_dev_close(io_dev_info_t *dev_info);
-static io_type_t device_type_mmc(void);
-
-static signed long long seek_offset;
-static size_t (*_read_blocks)(int lba, uintptr_t buf, size_t size);
-
-static const io_dev_connector_t mmc_dev_connector = {
-	.dev_open = mmc_dev_open
-};
-
-static const io_dev_funcs_t mmc_dev_funcs = {
-	.type = device_type_mmc,
-	.open = mmc_block_open,
-	.seek = mmc_block_seek,
-	.size = NULL,
-	.read = mmc_block_read,
-	.write = NULL,
-	.close = mmc_block_close,
-	.dev_init = mmc_dev_init,
-	.dev_close = mmc_dev_close,
-};
-
-static const io_dev_info_t mmc_dev_info = {
-	.funcs = &mmc_dev_funcs,
-	.info = 0,
-};
-
-/* Identify the device type as mmc device */
-static io_type_t device_type_mmc(void)
-{
-	return IO_TYPE_MMC;
-}
-
-/* Open a connection to the mmc device */
-static int mmc_dev_open(const uintptr_t init_params, io_dev_info_t **dev_info)
-{
-	struct io_mmc_dev_spec *device_spec =
-		(struct io_mmc_dev_spec *)init_params;
-
-	assert(dev_info != NULL);
-	*dev_info = (io_dev_info_t *)&mmc_dev_info;
-
-	_read_blocks = !device_spec->use_boot_part ?
-		mmc_read_blocks : mmc_boot_part_read_blocks;
-
-	return 0;
-}
-
-static int mmc_dev_init(io_dev_info_t *dev_info, const uintptr_t init_params)
-{
-	return 0;
-}
-
-/* Close a connection to the mmc device */
-static int mmc_dev_close(io_dev_info_t *dev_info)
-{
-	return 0;
-}
-
-/* Open a file on the mmc device */
-static int mmc_block_open(io_dev_info_t *dev_info, const  uintptr_t spec,
-			  io_entity_t *entity)
-{
-	seek_offset = 0;
-	return 0;
-}
-
-/* Seek to a particular file offset on the mmc device */
-static int mmc_block_seek(io_entity_t *entity, int mode,
-			  signed long long offset)
-{
-	seek_offset = offset;
-	return 0;
-}
-
-/* Read data from a file on the mmc device */
-static int mmc_block_read(io_entity_t *entity, uintptr_t buffer,
-			  size_t length, size_t *length_read)
-{
-	uint8_t retries;
-
-	for (retries = 0U; retries < 3U; retries++) {
-		*length_read = _read_blocks(seek_offset / MMC_BLOCK_SIZE,
-					    buffer, length);
-
-		if (*length_read == length) {
-			return 0;
-		}
-		WARN("%s: length_read = %lu (!= %lu), retry %u\n", __func__,
-		     (unsigned long)*length_read, (unsigned long)length,
-		     retries + 1U);
-	}
-
-	return -EIO;
-}
-
-/* Close a file on the mmc device */
-static int mmc_block_close(io_entity_t *entity)
-{
-	return 0;
-}
-
-/* Register the mmc driver with the IO abstraction */
-int register_io_dev_mmc(const io_dev_connector_t **dev_con)
-{
-	int result;
-
-	assert(dev_con != NULL);
-
-	result = io_register_device(&mmc_dev_info);
-	if (result == 0) {
-		*dev_con = &mmc_dev_connector;
-	}
-
-	return result;
-}
diff --git a/include/drivers/st/io_mmc.h b/include/drivers/st/io_mmc.h
deleted file mode 100644
index 6179e89..0000000
--- a/include/drivers/st/io_mmc.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Copyright (c) 2015-2021, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#ifndef IO_MMC_H
-#define IO_MMC_H
-
-#include <drivers/io/io_driver.h>
-
-struct io_mmc_dev_spec {
-	bool use_boot_part;
-};
-
-int register_io_dev_mmc(const io_dev_connector_t **dev_con);
-
-#endif /* IO_MMC_H */
diff --git a/plat/st/common/bl2_io_storage.c b/plat/st/common/bl2_io_storage.c
index 1bbaff6..c935b7d 100644
--- a/plat/st/common/bl2_io_storage.c
+++ b/plat/st/common/bl2_io_storage.c
@@ -25,7 +25,6 @@
 #include <drivers/raw_nand.h>
 #include <drivers/spi_nand.h>
 #include <drivers/spi_nor.h>
-#include <drivers/st/io_mmc.h>
 #include <drivers/st/stm32_fmc2_nand.h>
 #include <drivers/st/stm32_qspi.h>
 #include <drivers/st/stm32_sdmmc2.h>
diff --git a/plat/st/stm32mp1/platform.mk b/plat/st/stm32mp1/platform.mk
index 7eecf30..236296e 100644
--- a/plat/st/stm32mp1/platform.mk
+++ b/plat/st/stm32mp1/platform.mk
@@ -403,7 +403,6 @@
 BL2_SOURCES		+=	drivers/mmc/mmc.c					\
 				drivers/partition/gpt.c					\
 				drivers/partition/partition.c				\
-				drivers/st/io/io_mmc.c					\
 				drivers/st/mmc/stm32_sdmmc2.c
 endif